Falls are a major problem in frail older people who reside in assisted living facilities. They often result in serious injuries, such as hip fractures. Many factors predispose frail older people to falls, including unsteady gait and balance, weak muscles, poor vision, medications, and dementia (memory loss and confusion). External factors, such as poor lighting, loose rugs, poorly fitting shoes, clutter, and beds or toilets without handrails, also may cause falls. Preventing falls in frail older people requires many approaches to deal with the large number of predisposing factors. Most research about successful ways to prevent falls and fall-related injuries has involved healthier older people living in the community rather than frail older people in assisted living facilities. The methods that worked in these studies may not work in frail older people in assisted living facilities.